MooneyMitch Posted March 23, 2020 Report Posted March 23, 2020 55 minutes ago, 0TreeLemur said: UPDATE: Today we removed the forward belly panels from LHS and RHS. Here's what we discovered: The piano hinges on both sides were fastened with an assortment of mostly #4 screws on both sides, of various lengths, all but one with a pointy end, and only three used Tinnerman nuts. My co-pilot found six Tnuts unassociated with screws on the left side in the miscellaneous agglomeration of quasi-gritty and used ta be sticky substance formerly known as lubricant as she cleaned the area. Oddly, the Tnuts on the LHS had loosened. This indicates that either the wrong type of screws were used or the Tnuts lost their grip somehow. Plan of action: order new type-B screws with Tnuts and replace them all on LHS and RSH during next weekend's social-distancing at the airport. Regular preflight now to include jiggling the nose gear doors to make sure they haven't worked loose. Thanks to everyone for the guidance. -Fred Congratulations Fred. It's great when one can have success with one's own ship..............happy social-distancing. 1 Quote
Guest Posted March 23, 2020 Report Posted March 23, 2020 As well as loose hinge screws, the hinge eyes will wear lengthwise over time allowing the door to move for and aft. Clarence Quote
0TreeLemur Posted March 23, 2020 Author Report Posted March 23, 2020 1 hour ago, M20Doc said: As well as loose hinge screws, the hinge eyes will wear lengthwise over time allowing the door to move for and aft. Clarence Thx Clarence. I did notice that the left one has a little fore-aft slop. I'd estimate it to be < 1/16". How much do you think is too much? Quote
Guest Posted March 23, 2020 Report Posted March 23, 2020 3 hours ago, 0TreeLemur said: Thx Clarence. I did notice that the left one has a little fore-aft slop. I'd estimate it to be < 1/16". How much do you think is too much? That’s about 4 times the play in a new hinge. It simple AN257 hinge and AN470AD4 rivets from Spruce and are fairly simple to replace. Clarence Quote
0TreeLemur Posted March 24, 2020 Author Report Posted March 24, 2020 20 hours ago, M20Doc said: That’s about 4 times the play in a new hinge. It simple AN257 hinge and AN470AD4 rivets from Spruce and are fairly simple to replace. Clarence Ok I'll get 'er done. Quote
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